<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>In this paper, a new approach regarding a reconfigured system is proposed to improve the performance of an active fault tolerant control system. The system performance is evaluated with an intelligent index of performance. The reconfiguration mechanism is based on a model predictive controller and reference trajectory management techniques. When an actuator fault occurs in the system, a new degraded reference trajectory is generated and the controller calculates new admissible controls. A constraint set and cost function are established to avoid actuator saturation and reduce the control energy spent in closed loop dynamics. The effectiveness of the proposed method is illustrated using a hydrothermal system subject to actuator faults and constraints on actuator dynamic ranges.</p></abstract>

In this paper, a new approach regarding a reconfigured system is proposed to improve the performance of an active fault tolerant control system. The system performance is evaluated with an intelligent index of performance. The reconfiguration mechanism is based on a model predictive controller and reference trajectory management techniques. When an actuator fault occurs in the system, a new degraded reference trajectory is generated and the controller calculates new admissible controls. A constraint set and cost function are established to avoid actuator saturation and reduce the control energy spent in closed loop dynamics. The effectiveness of the proposed method is illustrated using a hydrothermal system subject to actuator faults and constraints on actuator dynamic ranges.

Performance evaluation based fault tolerant control with actuator saturation avoidance

Research Centre in Automation of Nancy (CRAN), Nancy University, CNRS, BP 239, 54506 Vandoeuvre Cedex, France

Modelling Analysis and Control of Systems (MACS), Gabès University, Omar Ibn Khattab Road, 6029 Gabès, Tunisia

International Journal of Applied Mathematics and Computer Science

In this paper, a new approach regarding a reconfigured system is proposed to improve the performance of an active fault tolerant control system. The system...

Performance evaluation based fault tolerant control with actuator saturation avoidance

Publié en ligne: 22 sept. 2011

Pages: 457 - 466

DOI: https://doi.org/10.2478/v10006-011-0034-x

Mots clés
fault tolerant control systems, performance degradation, reference management, model predictive control, performance index

This content is open access.

Performance evaluation based fault tolerant control with actuator saturation avoidance

Publié en ligne: 22 sept. 2011

Pages: 457 - 466

DOI: https://doi.org/10.2478/v10006-011-0034-x

Mots clésfault tolerant control systems, performance degradation, reference management, model predictive control, performance index

This content is open access.

Mots clés
fault tolerant control systems, performance degradation, reference management, model predictive control, performance index